SELF-CONTAINED PROPULSION SYSTEM STANDS ALONE
Marine propulsion technology has remained fairly constant over the last
few decades, with little in the way of revolutionary change.
However, Outboard Propuls
ion
Systems (OPS) has taken the next step with its innovative, self-contained engine
and waterjet package—the JetPac™.
Now offered by OEMs Zodiac, Key West
Boats and United Marine, the JetPac is a stock, gasoline or diesel automotive
engine coupled to a large-diameter (250 mm) waterjet that is completely enclosed
in a fiberglass shell. The unit is
mounted to the boat's transom for better steering and dependable sea keeping,
and will fit about 85% of boats from 15' to 25' without hull modification.
One big advantage of this configuration is that the package is
self-buoyant, helping the craft plane quickly.
The JetPac is offered with a 2.8-liter, in-line 4-cylinder, 150-hp
diesel, or a 5.7-liter, 275-hp gasoline engine.
The JetPac's waterjet is constructed of 316 stainless steel, and includes a sealed shaft housing and sealed, grease-packed bearings. It is designed to allow reverse gear as a braking system, and the entire assembly is removable as a cartridge.
JetPac utilizes an automobile-type, closed-loop cooling system. Treated fresh water circulates through the engine, the water-cooled
exhaust manifold and the oil cooler (where applicable). The engine interior is not exposed to seawater during operation. Its water pump circulates hot water through the heat exchanger where it is cooled by the circulating seawater.
The fiberglass shell of the JetPac is designed for over 1,000 pounds of displacement. It boasts a baffled air intake system and easy access to the engine for maintenance, and does not extend below the boat's keel. Perhaps its biggest advantage is not allowing engine fluids to contaminate the environment.
Contact Outboard Propulsion Systems, LLC,